playuplandme

{
  "name": "ttt4",
  "base": "",
  "fields": [
    {
      "name": "s1",
      "type": "uint8"
    },
    {
      "name": "s2",
      "type": "uint16"
    },
    {
      "name": "s3",
      "type": "uint32"
    }
  ]
}